Surgery – Truss – Perineal
Patent
1979-04-02
1981-01-06
Michell, Robert W.
Surgery
Truss
Perineal
128 25R, 137 38, 434 35, A61B 1900
Patent
active
042430240
ABSTRACT:
A gravity protective system for pilots including a pressurized suit and a control system therefor for regulating the pressure in the suit in response to variations in acceleration along the thoracic axis of the pilot. Signals indicative of acceleration along the vertical axis of the aircraft and cosine function of the tilt angle of the pilot's seat are combined with a derivative function of their product to produce a control signal for regulating the air pressure within the suit. A threshold control limits regulation to acceleration above a predetermined level, and a feedback circuit from the suit ensures rapid response without oscillation.
REFERENCES:
patent: 3650277 (1972-03-01), Sjostrand et al.
patent: 3780723 (1973-12-01), Van Patten et al.
patent: 4059909 (1977-11-01), Kron
patent: 4164079 (1979-08-01), Ashworth
Thesis111--"Modeling of the Human Force and Motion Sensing Mechanisms", G College of Engineering, Ohio State University, Columbus, Ohio, Jun., 1973.
Crosbie Richard J.
Edwards Paul R.
Hansen Henry
Kruter J. L.
Michell Robert W.
Sciascia R. S.
The United States of America as represented by the Secretary of
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